It is a sad day in rock and roll. Malcolm Young was my friend and the heart and soul of AC/DC. I had some of the best times of my life with him on our 1984 European tour. He will be missed and my deepest condolences to his family, bandmates and friends.

Heavy heart hearing of Malcolm Young’s passing.Not only did he co- found one of the greatest bands in the world he co wrote the songs that inspired many of us to wanna be in a band.Condolences to his whole family,band mates and fans. RIP bad ass.

RIP Malcolm Young. Our songs generally take the piss, but we meant this one. Even though Angus is the guitarist everyone talks about, Malcolm Young was the engine room, the riff-writing legend and without him there'd be no AC/DC. Forever Malcolm Young. https://t.co/uyVReV8ZPv

Devastated to hear of Malcolm Young’s passing... For me personally, the GREATEST rhythm guitarist of ALL TIME. Thank you Malcolm for all of the spit and fire, passion, ferocity, gravitas, and for the eternal inspiration. - KU

Malcolm is gone, and although his music lives on, there are no words to express this sadness. Bittersweet as it is, I’m happy he’s free from the dementia and in Heaven with Bon and his brother George. I owe so much to Malcolm Young... https://t.co/soxrFpQsmJpic.twitter.com/YmUI6IH5sG